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1. 发明授权

US5194243A Production of aluminum compound 失效
标题翻译：生产铝化合物
公开(公告)号：US5194243A
公开(公告)日：1993-03-16
申请号：US781208
申请日：1985-09-30
申请人： Alan Pearson , James R. Wall, deceased
发明人： Alan Pearson , James R. Wall, deceased
IPC分类号： C01F7/44 , C04B35/111
CPC分类号： B82Y30/00 , C01F7/448 , C04B35/1115 , C01P2002/01 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/12
摘要： A method of manufacture including bringing seed and aluminum hydroxide together in an aqueous medium and hydrothermally digesting for producing boehmite at the expense of the aluminum hydroxide.
摘要翻译：一种制造方法，包括将种子和氢氧化铝一起放在水性介质中，并以氢氧化铝为代价热水消解生产勃姆石。

2. 发明授权

US4797271A Producing alumina granules in a fluidized bed 失效
标题翻译：在流化床中生产氧化铝颗粒
公开(公告)号：US4797271A
公开(公告)日：1989-01-10
申请号：US111218
申请日：1987-10-22
申请人： Hubert L. Fleming , Jon F. Edd , Alan Pearson , Chin-Liang Chou , Hisashi O. Kono , Ching-Chung Huang
发明人： Hubert L. Fleming , Jon F. Edd , Alan Pearson , Chin-Liang Chou , Hisashi O. Kono , Ching-Chung Huang
IPC分类号： B01J21/04 , C01F7/02
CPC分类号： B01J21/04 , C01F7/025 , C01P2004/50 , C01P2006/10 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/21 , C01P2006/82
摘要： The process of the present invention for preparing granules of alumina includes pretreating an alumina powder by admixing with cold water in a mixer at a temperature below room temperature, e.g., such as below about 20.degree. C., to form a pretreated alumina having a pore volume saturated with water and further having a surface area of gel structure, and agglomerating the pretreated alumina in a fluidized bed to form granules. The process is particularly suited to producing activated alumina in macroporous granules. The process in one aspect further includes a cold hopper for cooling alumina powder prior to the pretreating step.
摘要翻译：用于制备氧化铝颗粒的本发明的方法包括通过在低于室温（例如低于约20℃）的温度下在混合器中与冷水混合来预处理氧化铝粉末，以形成具有孔的预处理氧化铝体积用水饱和，并且还具有凝胶结构的表面积，并将预处理的氧化铝在流化床中结块以形成颗粒。该方法特别适用于在大孔颗粒中生产活性氧化铝。在一个方面的方法还包括在预处理步骤之前用于冷却氧化铝粉末的冷料斗。

3. 发明授权

US4071594A Production of continuous ceramic fibers 失效
标题翻译：生产连续陶瓷纤维
公开(公告)号：US4071594A
公开(公告)日：1978-01-31
申请号：US660813
申请日：1976-02-24
申请人： Alan Pearson , Leroy D. Hart
发明人： Alan Pearson , Leroy D. Hart
IPC分类号： C04B35/622 , D01D5/04 , C04B35/10
CPC分类号： C04B35/62231 , C04B35/62236 , Y10S264/19
摘要： Thin continuous fibers or filaments of alumina or other ceramic or refractory materials are extruded, attenuated and wound from a slip comprising particles of the refractory or ceramic material and selected resins or binders comprising a high molecular weight linear chain polyethylene oxide polymer and an organic solvent. These fibers are then heated to provide a ceramically bonded refractory product.
摘要翻译：将薄的连续纤维或氧化铝或其它陶瓷或耐火材料的长丝挤出，减弱并从包含耐火材料或陶瓷材料的颗粒的滑动物和包含高分子量直链聚环氧乙烷聚合物和有机溶剂的选定树脂或粘合剂中卷起。然后将这些纤维加热以提供陶瓷结合的耐火产品。

4. 发明授权

US06203773B1 Low temperature mineralization of alumina 有权
标题翻译：氧化铝低温矿化
公开(公告)号：US06203773B1
公开(公告)日：2001-03-20
申请号：US09351968
申请日：1999-07-12
申请人： Michael A. Easley , Alan Pearson , Dinesh Moorjani , John E. Marhanka
发明人： Michael A. Easley , Alan Pearson , Dinesh Moorjani , John E. Marhanka
IPC分类号： C01F702
CPC分类号： C01F7/46 , C01F7/021 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/60 , C01P2006/62 , C01P2006/80
摘要： Alpha alumina particles are made by heating particles of alumina with an aqueous solution containing a dissolved fluorine-containing compound and an acid; separating the particles from the solution and then calcining the particles at a temperature not greater than about 1025° C. The alumina particles preferably have an LOI in the range of about 1-20 wt. %; more preferably about 1-6 wt. %. Alpha alumina particles of the invention are more readily ground into smaller particles than alpha alumina particles made by calcining at higher temperatures. The remaining soda in the alpha alumina is found to be highly soluble in hot water. The process produces low soda content (0.01 wt. % Na2O or less) alpha alumina crystals from alumina feedstocks with 0.5 wt. % or more initial soda levels. The alpha alumina crystals produced are as large as 30-40 microns. Most typically; the size range is between 2 and 8 microns. Because of the low mineralization temperature, the particles require significantly less grinding time to separate the component alpha crystals.
摘要翻译：通过用含有溶解的含氟化合物和酸的水溶液加热氧化铝颗粒来制备α-氧化铝颗粒; 将颗粒与溶液分离，然后在不大于约1025℃的温度下煅烧颗粒。氧化铝颗粒优选具有约1-20重量％的LOI。％; 更优选约1-6wt。％。本发明的α氧化铝颗粒比通过在较高温度下煅烧制备的α氧化铝颗粒更容易研磨成较小的颗粒。发现α氧化铝中的剩余苏打在高温下可溶于热水。该方法从0.5重量％的氧化铝原料产生低苏打含量（0.01重量％Na 2 O或更少）的α氧化铝晶体。初始苏打水平的百分比以上。产生的α氧化铝晶体大至30-40微米。最典型的尺寸范围在2到8微米之间。由于矿化温度低，颗粒需要明显较少的研磨时间来分离组分α晶体。

5. 发明授权

US5744412A Composition and process for making an insulating refractory material 失效
$Composition and process for making an insulating refractory material$
标题翻译：制造绝缘耐火材料的组成和工艺
公开(公告)号：US5744412A
公开(公告)日：1998-04-28
申请号：US644440
申请日：1996-05-13
申请人： Alan Pearson , Thomas G. Swansiger
发明人： Alan Pearson , Thomas G. Swansiger
IPC分类号： C04B35/101 , C04B35/66
CPC分类号： C04B35/101 , C04B35/66
摘要： A composition and process for making an insulating refractory material. The composition includes calcined alumina powder, flash activated alumina powder, an organic polymeric binder and a liquid vehicle which is preferably water. Starch or modified starch may also be added. A preferred insulating refractory material made with the composition has a density of about 2.4-2.6 g/cm.sup.3 with reduced thermal conductivity, compared with tabular alumina. Of importance, the formulation has good abrasion resistance and crush strength during intermediate processing (commercial sintering) to attain full strength and refractoriness, good abrasion resistance and crush strength.
摘要翻译：一种制备绝缘耐火材料的组合物和方法。该组合物包括煅烧氧化铝粉末，快速活化氧化铝粉末，有机聚合物粘合剂和优选为水的液态载体。还可以加入淀粉或改性淀粉。与片状氧化铝相比，用该组合物制成的优选的绝缘耐火材料具有约2.4-2.6g / cm 3的密度，导热率降低。重要的是，该制剂在中间加工（商业烧结）中具有良好的耐磨性和抗碎强度，以获得全部强度和耐火性，良好的耐磨性和抗压强度。

6. 发明授权

US5514361A Method for making a synthetic meixnerite product 失效
标题翻译：制备合成梅毒粉产品的方法
公开(公告)号：US5514361A
公开(公告)日：1996-05-07
申请号：US235504
申请日：1994-04-29
申请人： Edward S. Martin , Alan Pearson
发明人： Edward S. Martin , Alan Pearson
IPC分类号： B01J23/00 , C01B13/36 , C01B19/00 , C01B33/38 , C01F5/00 , C01F7/00 , C01F7/16 , C01G3/00 , C01G9/00 , C01G31/00 , C01G39/00 , C01G41/00 , C01G45/00 , C01G49/00 , C01G53/00 , C07C51/41
CPC分类号： C07C51/412 , B01J23/007 , C01B13/363 , C01B19/002 , C01B33/38 , C01F7/00 , C01F7/002 , C01F7/005 , C01G3/006 , C01G31/006 , C01G39/006 , C01G41/006 , C01G45/006 , C01G49/009 , C01G53/006 , C01G9/006 , C01P2002/22 , C01P2002/72 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/82
摘要： There is disclosed an improved method for making synthetic meixnerite having reduced carbonate contamination levels and a x-ray diffraction pattern resembling that shown in FIG. 1, the meixnerite is made by combining magnesium oxide and transition alumina, preferably an activated alumina powder having a BET surface area of about 100 m.sup.2 /g or greater, in a substantially carbonate-free environment.
摘要翻译：公开了一种改进的具有降低的碳酸盐污染水平的合成镁石的方法和类似于图1所示的X射线衍射图。如图1所示，通过在基本上不含碳酸盐的环境中将氧化镁和过渡氧化铝，优选BET比表面积为约100m 2 / g以上的活性氧化铝粉末组合而成。

7. 发明授权

US5149520A Small sized alpha alumina particles and platelets 失效
标题翻译：小尺寸的α氧化铝颗粒和血小板
公开(公告)号：US5149520A
公开(公告)日：1992-09-22
申请号：US460844
申请日：1990-01-31
申请人： Steven W. Sucech , John E. Marhanka , Alan Pearson
发明人： Steven W. Sucech , John E. Marhanka , Alan Pearson
IPC分类号： C01F7/14 , C01F7/44
CPC分类号： C01F7/442 , C01F7/144 , C01P2004/03 , C01P2004/20 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/12
摘要： A process for producing alpha alumina particles includes steps of precipitating alumina hydrate from an aqueous sodium aluminate solution by treatment with alumina hydrate seed material and alpha alumina promoter particles; and calcining the precipitated alumina hydrate in the presence of a mineralizer. A preferred mineralizer is aluminum fluoride. The process produces alpha alumina particles having a plate-like shape and an average size of less than about 1.5 microns.
摘要翻译： PCT No.PCT / US89 / 02659 Sec。 371日期1990年1月31日第 102（e）日期1990年1月31日PCT 1989年6月19日PCT。一种生产α氧化铝颗粒的方法包括通过用氧化铝水合物种子材料和α氧化铝促进剂颗粒处理从铝酸钠水溶液中沉淀氧化铝水合物的步骤; 并在矿化剂存在下煅烧沉淀的氧化铝水合物。优选的矿化剂是氟化铝。该方法产生具有板状形状和平均尺寸小于约1.5微米的α氧化铝颗粒。

8. 发明授权

US4970181A Process for producing ceramic shapes 失效
标题翻译：陶瓷形状的生产工艺
公开(公告)号：US4970181A
公开(公告)日：1990-11-13
申请号：US247541
申请日：1988-09-22
申请人： Alan Pearson
发明人： Alan Pearson
IPC分类号： C04B35/111 , C04B35/80
CPC分类号： C04B35/803 , C04B35/111
摘要： Disclosed is a method capable of forming complex green body shapes containing alumina for forming into ceramic products. The method comprises providing a slurry containing alumina powder and an aqueous solution in an amount to provide a high level of solids in the slurry and adding to the slurry rehydratable alumina powder to provide a mix, the rehydratable alumina being present in an amount sufficient to cause the mix to harden. The mix is then permitted to harden to a solid body suitable for firing into a ceramic product.
摘要翻译：公开了一种能够形成含有氧化铝的复合生坯体形成陶瓷制品的方法。该方法包括提供含有氧化铝粉末和水溶液的浆料，其量可以在浆料中提供高水平的固体，并将浆料可再水化的氧化铝粉末加入以提供混合物，可再水化氧化铝的存在量足以引起混合硬化。然后将混合物硬化至适于烧制成陶瓷产品的固体。

9. 发明授权

US4847064A Economical process for alpha alumina production 失效
标题翻译： α氧化铝生产的经济工艺
公开(公告)号：US4847064A
公开(公告)日：1989-07-11
申请号：US137159
申请日：1987-12-23
申请人： Alan Pearson
发明人： Alan Pearson
IPC分类号： C04B35/10 , B01J20/00 , C01F1/00 , C01F7/00 , C01F7/02 , C01F7/14 , C01F7/30 , C01F7/44
CPC分类号： C01F7/442 , C01F7/144 , C01P2004/03 , C01P2004/20 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/12
摘要： A process for making alpha alumina particles wherein a Bayer process caustic aluminate solution is treated with both alumina hydrate seed material and alpha alumina promoter particles to precipitate alumina hydrate particles. The precipitated particles are separated from the solution and then dried and calcined to produced alpha alumina particles. Addition of promoter particles in the precipitation step lowers the calcination temperture necessary to produce alpha alumina and results in smaller sized crystallites in the product.
摘要翻译：制备α氧化铝颗粒的方法，其中用氧化铝水合物种子材料和α氧化铝促进剂颗粒处理拜耳法苛性铝酸盐溶液以沉淀氧化铝水合物颗粒。将沉淀的颗粒与溶液分离，然后干燥并煅烧以产生α氧化铝颗粒。在沉淀步骤中加入助催化剂颗粒降低产生α氧化铝所需的煅烧温度，并在产品中产生较小尺寸的微晶。

10. 发明授权

US4704378A Fluidized bed granulation of rehydratable alumina 失效
标题翻译：可再水化氧化铝的流化床造粒
公开(公告)号：US4704378A
公开(公告)日：1987-11-03
申请号：US16631
申请日：1987-02-19
申请人： Hubert L. Fleming , Jon F. Edd , Alan Pearson , Chin-Liang Chou , Hisashi O. Kono , Ching-Chung Huang
发明人： Hubert L. Fleming , Jon F. Edd , Alan Pearson , Chin-Liang Chou , Hisashi O. Kono , Ching-Chung Huang
IPC分类号： B01J21/04 , C01F7/02
CPC分类号： B01J21/04 , C01F7/025 , C01P2004/50 , C01P2006/10 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/21 , C01P2006/82
摘要： The process of the present invention for preparing granules of alumina includes pretreating an alumina powder by admixing with cold water in a mixer at a temperature below room temperature, e.g., such as below about 20.degree. C., to form a pretreated alumina having a pore volume saturated with water and further having a surface area of gel structure, and agglomerating the pretreated alumina in a fluidized bed to form granules sized in the range of about 1-3 mm. The process is particularly suited to producing activated alumina in macroporous granules. The process in one aspect further includes a cold hopper for cooling alumina powder prior to the pretreating step.
摘要翻译：用于制备氧化铝颗粒的本发明的方法包括通过在低于室温（例如低于约20℃）的温度下在混合器中与冷水混合来预处理氧化铝粉末，以形成具有孔的预处理氧化铝体积用水饱和并且还具有凝胶结构的表面积，并且将预处理的氧化铝在流化床中附聚以形成尺寸为约1-3mm的颗粒。该方法特别适用于在大孔颗粒中生产活性氧化铝。在一个方面的方法还包括在预处理步骤之前用于冷却氧化铝粉末的冷料斗。

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